Each time I make a DVD with ver #1 all that I want is a screen that offers 2 options. Play entire video or button to scene selection menu. I have markers already inserted from Vegas & then I tell it how many thumbnails per page that I want , I always find that what I had as the first scene is now scene 2 & and an introductory thmbnail proceeds this. What am I doing wrong & what is best way to fix it?